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Meross Radiator thermostat, 1

Price in EUR including VAT
5Ratings
BrandMore from Meross
Test reports1 test
Delivered between Tue, 12.5. and Fri, 15.5.
More than 10 pieces in stock at supplier
free shipping

Number2

Product details

Easy installation: Remove the old thermostat and screw in the new one. Usually, this can be done by hand, but a pipe wrench may be needed in some cases. Depending on the system, adapters are required, which are included in the package. For more information on compatibility, please scan the QR code.

Compatibility with Apple HomeKit. The Meross Smart Home Thermostat supports voice control via Siri, Alexa, and Google. It allows device control through the Meross app and Apple Home (Apple Watch / Apple TV). You can change the current temperature using voice commands. Android users can use the Meross app on Android 4.1 or higher.

A 2.4 GHz Wi-Fi connection is required.

Automatically control the heating via a schedule through the Meross app. It supports up to six time slots. Open windows are detected, and the heating is automatically stopped for 30 minutes. Up to 30 percent of heating costs can be saved in winter.

The smart thermostat size is M30 * 1.5 mm. The package includes: 1 Smart Radiator Thermostat, 1 installation manual, and 6 connection adapters (Danfoss RA adapter, Danfoss RAV adapter, Danfoss RAVL adapter, Giacomini adapter, Caleffi adapter, M28*1.5 adapter).

Key specifications

Thermostat type
Radiator thermostats
Suitable for
Radiator
Smart home
Compatible
Smart home ecosystem
Apple Home, Apple Siri, Google Assistant
Power supply
Battery operated
Items per sales unit
1 pcs.

General information

Item number
21966039
Manufacturer
Meross
Category
Thermostats
Manufacturer No.
MTS150HK
Release date
5.9.2022

Colour

Colour
White
Exact colour description
White

Thermostat properties

Thermostat type
Radiator thermostats
Suitable for
Radiator
temperature control
Radio, Wi-Fi
Number of switching times per day
6
Thermostat functions
Window open detection

Smart home features

Smart home
Compatible
Smart home ecosystem
Apple Home, Apple Siri, Google Assistant
Communication standard
Amazon Alexa, Apple HomeKit, Apple Siri, Google Assistant

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
24,39 kg
Climate contribution
EUR 0,61

Power supply

Power supply
Battery operated

Battery properties

Battery size
AA / LR6 / LR06 / Mignon / R6 / R14505
Number of batteries
2

Scope of delivery

Items per sales unit
1 pcs.
Scope of delivery
Heat governor

Product dimensions

Length
5 cm
Width
8.20 cm
Height
5 cm
Weight
0.20 kg

Legal Notice

Product Safety

Package dimensions

Length
15 cm
Width
10 cm
Height
6 cm
Weight
27 g

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Thermostats» category have a defect within the first 24 months?

Source: Galaxus
  • 12.tado°
    0,8 %
  • 13.Sonoff
    1 %
  • 14.Meross
    1,1 %
  • 15.Aqara
    1,5 %
  • 16.Bosch Hausgeräte
    1,7 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • 1.EQ-3
    0 days
  • 1.Homematic IP
    0 days
  • 1.Meross
    0 days
  • 1.Sonoff
    0 days
  • 7.Danfoss
    1 day

Return rate

How often is a product of this brand in the «Thermostats» category returned?

Source: Galaxus
  • 15.Eurotronic
    4,8 %
  • 16.Danfoss
    6,9 %
  • 17.Meross
    7,6 %
  • 18.Oventrop
    12,2 %
  • 19.Heatit
    12,6 %
Source: Galaxus

Translation: machine translated
Without ratingNo rating
Heise onlineSingle testReleaseApril 2026
  • PositiveMinimalist exterior
  • PositiveSimple programming of the schedule
  • PositiveMatter support, excellent home assistant integration
  • NegativeNo rotary control
  • NegativeNo automatic hydraulic balancing

The Meross radiator thermostat impressed in the test with its good control behaviour and Matter compatibility, which means it can also be controlled by third-party smart home systems that support Matter. It is ideal for Home Assistant users because, unlike with Matter, it can be fully integrated, including all device data and control options...